<template>
  <div class="home-container">
    <el-container>
      <!-- //头部/* -->
      <el-header>
        <div>
          <img src="../assets/log.png" alt="" />
          <span>后台管理系统</span>
        </div>
        <el-button type="info" @click="logout">退出</el-button>
      </el-header>
      <!-- //主体区 -->
      <el-container>
        <!-- //左侧 -->
        <el-aside :width="isCollapse ? '60px' : '200px'">
          <div class="toggle-botton" @click="toggleCollapse"><i class="el-icon-s-fold"></i></div>
          <el-menu
            background-color="#172841"
            text-color="#fff"
            active-text-color="#409Bff"
            unique-opened
            :collapse="isCollapse"
            :collapse-transition="false"
            :router="true"
            :default-active="activePath"
          >
            <!-- //一级菜单 -->
            <el-submenu :index="item.id +''" v-for="item in menulist" :key="item.id">
              <!-- 一级菜单模版区 -->
              <template slot="title">
                <i :class="iconObj[item.id]"></i>
                <span >{{item.authName}}</span>
              </template>
              <!-- //二级菜单 -->
              <el-menu-item :index="'/'+subItem.path+''" v-for="subItem in item.children" :key="subItem.id" @click="saveNavState('/'+subItem.path)">
                <template slot="title">
                  <i class="el-icon-s-operation"></i>
                  <span>{{subItem.authName}}</span>
                </template>
              </el-menu-item>
            </el-submenu>
          </el-menu>
        </el-aside>
        <!-- //右侧 -->
        <el-main>
          <!-- 路由占位符 -->
          <router-view>

          </router-view>
        </el-main>
      </el-container>
    </el-container>
  </div>
</template>



<script>
export default {
  data(){
    return{
      menulist:[],
      iconObj:{
        '125':'el-icon-user-solid',
        '103':'el-icon-s-management',
        '101':'el-icon-s-cooperation',
        '102':'el-icon-s-order',
        '145':'el-icon-s-data'
      },
      //不折叠
      isCollapse :false,
      activePath:''
    }
  },
  created()
  {
    this.getMenuList()
    this.activePath=window.sessionStorage.getItem('activePath')
  },
  methods: {
    logout() {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    async getMenuList(){
     const {data:res}= await this.$http.get('menus')
    //  console.log(res)
     if(res.meta.status !==200) return this.$message.error(res.meta.msg)
     this.menulist = res.data
    },
    // 按钮的折叠与展开
    toggleCollapse(){
      this.isCollapse =!this.isCollapse
    },
    //保存链接的激活状态
    saveNavState(activePath){
      window.sessionStorage.setItem('activePath',activePath)
      this.activePath =activePath
    }
  },
  
}
</script>

<style lang="less" scoped>
.el-container {
  height: 100%;
}
.home-container {
  height: 100%;
}

.el-header {
  background-color: #fff;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  > div {
    display: flex;
    align-items: center;

    span {
      margin-left: 15px;
    }
    img {
      height: 30px;
      margin-left: 15px;
    }
  }
}

.el-aside {
  background-color: #112943;
  .el-menu{
    border-right: 0;
  }
}
.el-main {
  background-color: #f3f6f9;
}
.toggle-botton{
  background-color: #409Bff;
  font-size: 18px;
  color: #fff;
  line-height: 24px;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>
